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General
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Clinical description
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Case reports
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Treatment
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Clinical images
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46 year old woman

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36 year old woman with distal phalangeal bone involvement

Gross description
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Micro description
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Micro images
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Palm, courtesy of Dr. Mark R. Wick

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Poorly circumscribed
fibroproliferative
process with
scattered, linear
and calcified zones

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Amorphous calcification
surrounded by
palisading cells
suggestive of
rheumatoid nodule
or crystals

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Typical zonation pattern
has cellular, plump fibroblastic
cells palisading around a
hyalinized collagenous zone,
which in turn surrounds
the calcification

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Cells adjacent to hyalinized layer are commonly more rounded

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Chondroid area is adjacent to calcification

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H&E

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16 year old girl with foot tumor

Cytology description
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Positive stains
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Negative stains
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Electron microscopy description
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Molecular / cytogenetics description
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Differential diagnosis
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Additional references
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End of Soft Tissue > Fibroblastic / myofibroblastic tumors > Calcifying aponeurotic fibroma



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